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<p>[QUOTE=&quot;Michael K, post: 3001854, member: 78298&quot;]I wouldn&#039;t use salt. Vinegar will make the copper a little pink.</p><p>You can take any toothpaste, and put a little on front and back and rub it between your fingers and a lot of the dirt will come off.</p><p>Vinegar is not terrible on nickel (if you don&#039;t mind ruining the coin) but on copper I don&#039;t like the color. You can always experiment on a couple of old dirty pennies.[/QUOTE]</p><p><br /></p>

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